@book{27051,
	author = {Ferguson, Henry G. and Nevada Bureau of Mines.},
	title = {Geology of the Tybo district, Nevada,},
	publisher = {University of Nevada},
	year = {[1933]},
	address = {Reno, Nev.,},
	note = {At head of title: Bulletin of Nevada State Bureau of Mines and Mackay School of Mines.}
}